5 point Using a riding lawn mower cuts a yard with more power than a push
mower because:
*
you can sit on it
it does the same work in less time
the work and time are equal
it did less work for a longer time

You want to move a heavy box with mass 30.0 kg across a carpeted floor. you pull hard on one of the edges of the box at an angle 30∘ above the horizontal with a force of magnitude 240 n, causing the box to move horizontally. the force of friction between the moving box and the floor has magnitude 41.5 n . what is the box's acceleration just after it begins to move